list[列表]的使用

#!/usr/bin/env python3
# -*- coding:utf-8 -*-
# name:zzyu
shop_list = [["手机",5000],
             ["电脑",7000],
             ["香蕉",50],
             ["衣服",200],
             ["车",10000]]
shop_list_2 = []
salary = input("请输入您的工资：")
if salary.isdigit():
    salary = int(salary)
    info = '''<<<您的工资是:\033[31;1m{_salary}\033[0m,请选择您需要的商品编号>>>'''.format(_salary=salary)
    print(info)
    while True:
        for index,itme in enumerate(shop_list):
            print (index,itme)
        user_choice = input("请选择您要购买的商品编号：")
        if user_choice.isdigit():
            user_choice = int(user_choice)
            if user_choice < len(shop_list) and user_choice >= 0:
                shop_list_2.append(shop_list[user_choice])
                user_choice_2 = shop_list[user_choice]
                if user_choice_2[1] <= salary:
                    print("已为您添加到购物车：", shop_list_2)
                    salary -= shop_list[user_choice][1]
                    print("您的余额为：\033[31;1m{}\033[0m".format(salary))
                else:
                    print ("您的剩余余额为：\033[31;1m{_salary}\033[0m，请及时充值 ！！！".format(_salary=salary))
                    break
            else:
                print("没有此商品。。。")
        elif user_choice == "q":
            print("您已加入购物车的商品有:")
            for p in shop_list_2:
                print(p)
            exit()
        else:
            print("您输入有误，请重新输入。。。。。")
else:
    print("<<<<<<您输入有误，请重新输入>>>>>>>")

第二次尝试

shop_list = [("苹果",50),
             ("自行车",200),
             ("手机",3000),
             ("电脑",5000),
             ("摩托车",8000),
             ("汽车",10000)]
shop_list_2 = []
salary = input("请输入您的工资：")
if salary.isdigit():
    salary = int(salary)
    print("您的工资是：\033[31;1m{_user_salary}\033[0m".format(_user_salary=salary))
while True:
    for index, item in enumerate(shop_list):
        print(index, item)
    user_num_input = input("请输入商品编号：")
    if user_num_input.isdigit():
        user_num_input = int(user_num_input)
        if user_num_input < len(shop_list) and user_num_input >= 0:
            if shop_list[user_num_input][1] <= salary:
                salary -= shop_list[user_num_input][1]
                shop_list_2.append(shop_list[user_num_input])
                info = '''您已加入购物车的商品:{_suer_choice_shop}
您的余额为：\033[31;1m{_user_salary_1}\033[0m'''.format(_suer_choice_shop=shop_list_2,_user_salary_1=salary)
                print(info)
            else:
                print("您的余额不够添加此商品，请及时充值，目前您的余额剩余：\033[31;1m%s\033[0m" %(salary))
                user_pay_choice = input("是否对已加入购物车的商品进行购买？<y or n>:")
                if user_pay_choice == "y":
                    print("恭喜您以下商品购买成功：%s"%(shop_list_2))
                    print("剩余金额为：\033[31;1m%s\033[0m"%(salary))
                    break
                elif user_pay_choice == "n":
                    print("欢迎下次光临，再见")
                    break
                else:
                    print("您的输入有误，再见")
                    break
        else:
            print("您输入有误，请重新输入！！！")
    elif user_num_input == "q":
        info_2 = '''您已选择的商品有：%s''' % (shop_list_2)
        print(info_2)
        exit()
    else:
        print("输入错误，请重新选择~~~~~")